{"product_id":"hella-marine-dual-tone-boat-horn-set-110db-12v","title":"Hella Marine Dual-Tone Boat Horn Set, 110dB 12V","description":"\u003cp class=\"nvn-hero\"\u003eHella Marine's dual-tone horn set gives your boat a serious voice. You get two trumpet horns, one tuned to 500 Hz and one to 400 Hz, that sound together for a full 110-decibel blast anyone on the water will hear. It runs on 12 volts, mounts on the included galvanized bracket, and the yellow ABS housing shrugs off spray.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eA boat horn only matters when you actually need it, and that's usually the worst possible moment. Coming into a blind turn on a busy channel. Backing off a dock with a paddler you didn't see. A patch of fog rolling in faster than the forecast said. This Hella Marine dual-tone set is built for exactly those moments. You get two trumpet horns in one kit, one tuned to a 500 Hz high tone and the other to a 400 Hz low tone, and they're meant to run together. That pairing is the whole point. A single-note horn can get lost in wind and engine drone. Two tones stacked on top of each other give you a fuller, more urgent sound that carries.\u003c\/p\u003e\n\u003cp\u003eRated at 110 decibels, this set is loud. Loud enough to turn heads across a crowded anchorage, and loud enough to do its real job, which is making sure another skipper hears you before anything goes wrong. The high and low trumpets don't just add volume, they add texture. The blended note is harder to ignore than a flat beep, and it reads clearly as a boat signal instead of background noise.\u003c\/p\u003e\n\u003cp\u003eHella Marine built the housing out of yellow ABS plastic instead of metal, and that's a deliberate choice out on the water. Salt spray eats steel horns alive. Plastic doesn't corrode, doesn't streak rust down your hull, and keeps working season after season. The bright yellow also makes the horns easy to spot when you're chasing down a connection in a locker or behind the console. Each horn carries a 3.2 inch trumpet, and the kit ships with a galvanized metal bracket so you've got a solid mounting point right out of the box.\u003c\/p\u003e\n\u003cp\u003eIt's a 12 volt setup, which is what most boats run, and the pair draws 72 watts. That works out to right around 6 amps, so wire it like you mean it. We'd run the horns through a relay triggered by your helm button, with the horn circuit fused close to the battery. That keeps the heavy current off your dash switch and makes for a cleaner, longer-lasting install. If you're replacing a tired factory horn that's gone quiet or scratchy, this is a straightforward upgrade on the same 12 volt wiring.\u003c\/p\u003e\n\u003cp\u003eWhere you put them matters. Mount the horns in a spot that's protected from direct standing water but still open enough to project sound forward, behind a console, up under a gunwale, or on a vented bracket near the helm. Angle the trumpets slightly down so they shed water and don't fill up in a rain squall. Both horns should face the same general direction so the two tones combine instead of fighting each other.\u003c\/p\u003e\n\u003cp\u003eSound signals aren't optional gear. The navigation rules expect every boat to be able to make a short and a prolonged blast, and a weak or dead horn leaves you without a legal way to communicate on the water. This Hella Marine set gives you a genuine, boat-grade voice for maneuvering signals, fog signals, and the plain old \"hey, I'm right here\" blast when someone drifts too close. It suits everything from center consoles and bay boats to cruisers and pontoons. If your current horn sounds more like a sad kazoo than a warning, it's time.\u003c\/p\u003e\n\u003cp\u003eHella has been making acoustic warning gear for over a century, and the Marine line carries that same fit-and-forget philosophy. These are simple, sealed, purpose-built horns. There's nothing to fuss with once they're wired and mounted. You press the button, they sound, and they keep doing it trip after trip. That kind of quiet reliability is exactly what you want from a piece of safety gear you'll ignore right up until the day it saves you a very bad afternoon.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eDual-tone design pairs a 500 Hz high-tone horn with a 400 Hz low-tone horn for a fuller, more penetrating blast that cuts through wind and engine noise\u003c\/li\u003e\n  \u003cli\u003e110 decibel output is loud enough to be heard clearly across a crowded channel or anchorage\u003c\/li\u003e\n  \u003cli\u003e12 volt operation drops right into standard marine electrical systems\u003c\/li\u003e\n  \u003cli\u003e72 watt draw (about 6 amps) delivers strong output, so wire it through a relay for a clean install\u003c\/li\u003e\n  \u003cli\u003eYellow ABS plastic housing won't corrode or rust like metal horns exposed to salt spray\u003c\/li\u003e\n  \u003cli\u003e3.2 inch trumpets project the sound forward for maximum reach\u003c\/li\u003e\n  \u003cli\u003eGalvanized metal mounting bracket included for a solid, ready-to-install setup\u003c\/li\u003e\n  \u003cli\u003eShips as a matched set of 2 horns, both tones in one kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Hella Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat comes in the kit?\u003c\/summary\u003e\n    \u003cp\u003eYou get two horns, one 500 Hz high-tone and one 400 Hz low-tone, plus a galvanized metal mounting bracket. It's a matched set of 2 designed to sound together.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow loud is it?\u003c\/summary\u003e\n    \u003cp\u003eThe set is rated at 110 decibels. That's loud enough to be heard clearly across a busy channel or a crowded anchorage.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy two horns instead of one?\u003c\/summary\u003e\n    \u003cp\u003eThe two trumpets are tuned to different pitches, 500 Hz and 400 Hz. When they sound together the blended high and low note is fuller and harder to ignore than a single flat tone, and it carries better through wind and engine noise.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat voltage does it run on?\u003c\/summary\u003e\n    \u003cp\u003e12 volts, which is the standard electrical system on most boats.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much power does it draw?\u003c\/summary\u003e\n    \u003cp\u003eThe pair draws 72 watts, which is right around 6 amps at 12 volts. Because of that current, we recommend wiring the horns through a relay triggered by your helm button, with the circuit fused near the battery.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the housing made of?\u003c\/summary\u003e\n    \u003cp\u003eYellow ABS plastic. It won't corrode or rust the way a metal horn does when it's exposed to salt spray, so it holds up season after season on the water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I mount it?\u003c\/summary\u003e\n    \u003cp\u003eThe kit includes a galvanized metal bracket. Mount the horns in a spot protected from standing water but open enough to project sound forward, and angle the trumpets slightly down so they shed water.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow big are the trumpets?\u003c\/summary\u003e\n    \u003cp\u003eEach horn has a 3.2 inch trumpet, sized to project the sound forward for good reach.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use this to replace a weak factory horn?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's a straightforward upgrade on the same 12 volt wiring. If your existing horn has gone quiet or scratchy, this dual-tone set gives you a much stronger signal.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eHella Marine Dual-Tone Trumpet Horn Set\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e012010821\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e760687164067\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eDual-Tone (High + Low)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHigh-Tone Frequency\u003c\/th\u003e\n\u003ctd\u003e500 Hertz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLow-Tone Frequency\u003c\/th\u003e\n\u003ctd\u003e400 Hertz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSound Output\u003c\/th\u003e\n\u003ctd\u003e110 Decibels\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12 Volt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e72 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTrumpet Size\u003c\/th\u003e\n\u003ctd\u003e3.2 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHousing Material\u003c\/th\u003e\n\u003ctd\u003eABS Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMounting Bracket\u003c\/th\u003e\n\u003ctd\u003eGalvanized Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSet of 2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What comes in the kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You get two horns, one 500 Hz high-tone and one 400 Hz low-tone, plus a galvanized metal mounting bracket. It's a matched set of 2 designed to sound together.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How loud is it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The set is rated at 110 decibels. That's loud enough to be heard clearly across a busy channel or a crowded anchorage.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why two horns instead of one?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The two trumpets are tuned to different pitches, 500 Hz and 400 Hz. When they sound together the blended high and low note is fuller and harder to ignore than a single flat tone, and it carries better through wind and engine noise.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What voltage does it run on?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"12 volts, which is the standard electrical system on most boats.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much power does it draw?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The pair draws 72 watts, which is right around 6 amps at 12 volts. Because of that current, we recommend wiring the horns through a relay triggered by your helm button, with the circuit fused near the battery.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the housing made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yellow ABS plastic. It won't corrode or rust the way a metal horn does when it's exposed to salt spray, so it holds up season after season on the water.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I mount it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The kit includes a galvanized metal bracket. Mount the horns in a spot protected from standing water but open enough to project sound forward, and angle the trumpets slightly down so they shed water.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How big are the trumpets?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Each horn has a 3.2 inch trumpet, sized to project the sound forward for good reach.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use this to replace a weak factory horn?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's a straightforward upgrade on the same 12 volt wiring. If your existing horn has gone quiet or scratchy, this dual-tone set gives you a much stronger signal.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella Marine","offers":[{"title":"Default Title","offer_id":45077000388701,"sku":"2009544","price":26.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_3d4790df-f231-4693-a079-4458058c13a4.jpg?v=1789904113","url":"https:\/\/nvnmarine.com\/products\/hella-marine-dual-tone-boat-horn-set-110db-12v","provider":"NVN Marine","version":"1.0","type":"link"}